Sub-Fc 74 (0X4A): Read Relay Pairs For Interlocked Mode - ICP DAS USA IR-310-RM User Manual

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5.4.24 Sub-FC 74 (0x4A): Read relay pairs for interlocked mode

‧Request
Byte order Description
00 Address
01 FC
02 Sub-FC
‧Response
Byte order Description
00 Address
01 FC
02 Sub-FC
03 Interlocked relay pairs
Note:
1. For the byte of "Interlocked relay pairs", bit 0 means the pair of relay 0 & relay 1 and
bit 4 means the pair of relay 8 & relay 9. If bit 0 is set to 1, relay 0 and relay 1 is an
interlocked relay pair.
2. The interlocked relay pairs are effective in the interlocked mode. To set the
interlocked mode, please refer to Sub-FC 67.
3. For an interlocked relay pair, e.g. RL0 and RL1, three statuses are allowed:
Interlocked Status
1
2
3
IR-310-RM, IR Controlled 10-ch High Power Relay Module (Ver. 1.1, Jul/02/2013) 57
Size Value
1 Byte 1 ~ 247
1 Byte 0x64
1 Byte 0x4A
Size Value
1 Byte 1 ~ 247
1 Byte 0x64
1 Byte 0x4A
1 Byte 0x00 ~ 0x1F.
Relay 0
ON (NO contact)
OFF (NC contact)
OFF (NC contact)
Relay 1
OFF (NC contact)
ON (NO contact)
OFF (NC contact)